X-Git-Url: https://git.dogcows.com/gitweb?a=blobdiff_plain;f=src%2Fstlplus%2Fpersistence%2Fpersistent_callback.tpp;fp=src%2Fstlplus%2Fpersistence%2Fpersistent_callback.tpp;h=0000000000000000000000000000000000000000;hb=5846afb00833cc72fe72422ca896d2387c712cb4;hp=0773dad5495c7e3279350908685019a147214717;hpb=a97500609dc3c1b11f9786d32bc458eb00de4c36;p=chaz%2Fyoink

diff --git a/src/stlplus/persistence/persistent_callback.tpp b/src/stlplus/persistence/persistent_callback.tpp
deleted file mode 100644
index 0773dad..0000000
--- a/src/stlplus/persistence/persistent_callback.tpp
+++ /dev/null
@@ -1,100 +0,0 @@
-////////////////////////////////////////////////////////////////////////////////
-
-//   Author:    Andy Rushton
-//   Copyright: (c) Southampton University 1999-2004
-//              (c) Andy Rushton           2004-2009
-//   License:   BSD License, see ../docs/license.html
-
-//   Polymorphous classes using the callback approach
-
-//   format: magic [ key data ]
-
-////////////////////////////////////////////////////////////////////////////////
-#include "persistent_int.hpp"
-
-namespace stlplus
-{
-
-  ////////////////////////////////////////////////////////////////////////////////
-
-  template<typename T>
-  void dump_callback(dump_context& context, const T* const data)
-    throw(persistent_dump_failed)
-  {
-    try
-    {
-      // register the address and get the magic key for it
-      std::pair<bool,unsigned> mapping = context.pointer_map(data);
-      dump_unsigned(context,mapping.second);
-      // if the address is null, then that is all that we need to do
-      // however, if it is non-null and this is the first sight of the address, dump the contents
-      if (data && !mapping.first)
-      {
-        // callback method - get the callback data and perform the dump
-        // this will throw persistent_illegal_type if not recognised, thus the try block
-        dump_context::callback_data callback = context.lookup_callback(typeid(*data));
-        // dump the magic key for the type
-        dump_unsigned(context, callback.first);
-        // now call the callback that dumps the subclass
-        callback.second(context,data);
-      }
-    }
-    catch (const persistent_illegal_type& except)
-    {
-      // convert this to a simpler dump failed exception
-      throw persistent_dump_failed(except.what());
-    }
-  }
-
-  ////////////////////////////////////////////////////////////////////////////////
-
-  template<typename T>
-  void restore_callback(restore_context& context, T*& data)
-    throw(persistent_restore_failed)
-  {
-    try
-    {
-      // first delete any previous object pointed to since the restore creates the object of the right subclass
-      if (data)
-      {
-        delete data;
-        data = 0;
-      }
-      // get the magic key
-      unsigned magic = 0;
-      restore_unsigned(context,magic);
-      // now lookup the magic key to see if this pointer has already been restored
-      // null pointers are always flagged as already restored
-      std::pair<bool,void*> address = context.pointer_map(magic);
-      if (address.first)
-      {
-        // seen before, so simply map it to the existing address
-        data = (T*)address.second;
-      }
-      else
-      {
-        // now restore the magic key that denotes the particular subclass
-        unsigned key = 0;
-        restore_unsigned(context, key);
-        // callback approach
-        // call the create callback to create an object of the right type
-        // then call the restore callback to get the contents
-        // this will throw persistent_illegal_type if not recognised - this is caught below
-        restore_context::callback_data callbacks = context.lookup_callback(key);
-        data = (T*)callbacks.first();
-        // add this pointer to the set of already seen objects
-        // note that the address is mapped before it is dumped so that self-referential structures dump correctly
-        context.pointer_add(magic,data);
-        callbacks.second(context,data);
-      }
-    }
-    catch (const persistent_illegal_type& exception)
-    {
-      // convert this to a simpler dump failed exception
-      throw persistent_restore_failed(exception.what());
-    }
-  }
-
-  ////////////////////////////////////////////////////////////////////////////////
-
-} // end namespace stlplus